Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Eddy current compensation using a gradient system modeling in MR Spiral scan imaging

MR Spiral scan 영상에서 Gradient system의 모델링을 이용한 Eddy current compensation

  • Cho, S.H. (Dept. Electrical Engineering, Kwangwoon University) ;
  • Kim, P.K. (Dept. Electrical Engineering, Kwangwoon University) ;
  • Kang, S.W. (Dept. Electrical Engineering, Kwangwoon University) ;
  • Ahn, C.B. (Dept. Electrical Engineering, Kwangwoon University)
  • Published : 2007.07.18
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Abstract

Gradient system에 spiral waveform 입력을 가하면 Hardware limitation에 의하여 만들어지는 gradient fields에 Transient time delay가 발생한다. 이를 보상하기 위하여, Gradient system을 R-L-C 회로로 모델링하여 재구성에 필요한 k-space trajectory를 보정하여 개선된 image를 획득하였다.

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